Problems with the las version of jre 1.6.0_11

Question

Hi
I have an applet developed in java 5 years ago. Every year we have run it without big deals since this time.
The applet works without problems if it's running in a computer with jre 1.6.0_7 but if the computer has the jre 1.6.0_11 it doesn't work.
These last days I have tried to debug it and find the problem.
The error that take me is:
java.lang.SecurityException
     at java.lang.SecurityManager.checkPermission(Unknown Source)
     at java.lang.SecurityManager.checkConnect(Unknown Source)
     at sun.plugin2.applet.Applet2SecurityManager.checkConnect(Unknown Source)
     at sun.awt.image.URLImageSource.checkSecurity(Unknown Source)
     at sun.awt.image.InputStreamImageSource.addConsumer(Unknown Source)
     at sun.awt.image.InputStreamImageSource.startProduction(Unknown Source)
     at java.awt.image.FilteredImageSource.startProduction(Unknown Source)
     at java.awt.image.FilteredImageSource.startProduction(Unknown Source)
     at sun.awt.image.ImageRepresentation.startProduction(Unknown Source)
     at sun.awt.image.ImageRepresentation.prepare(Unknown Source)
     at sun.awt.SunToolkit.prepareImage(Unknown Source)
     at java.awt.Component.prepareImage(Unknown Source)
     at java.awt.ImageMediaEntry.startLoad(Unknown Source)
     at java.awt.MediaEntry.getStatus(Unknown Source)
     at java.awt.ImageMediaEntry.getStatus(Unknown Source)
     at java.awt.MediaTracker.statusID(Unknown Source)
     at java.awt.MediaTracker.waitForID(Unknown Source)
     at javax.swing.ImageIcon.loadImage(Unknown Source)
     at javax.swing.ImageIcon.setImage(Unknown Source)
     at ImagePanel.OmpleImagePanel(ImagePanel.java:258)
     at AppletArbol.init(AppletArbol.java:167)
     at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
     at java.lang.Thread.run(Unknown Source)
Excepcin: java.lang.SecurityException
The reference to the classe Imagepanel.java line 258 has: icones[c].setImage(imatgesR[c]);
where icones is an array of ImageIcon: in the previous code it has :
ImageIcon [] icones;
and the magic sentence:
for(int c=0;c<=icono.size()/*-1*/;c++){                         
               icones[c]= new ImageIcon();
               icones[c].setImage(imatgesR[c]);                         
And imatgesR is an array of Image
Image [] imatgesR;
What is trying to do the program is convert an array of Image to an array of ImageIcon which will be insert in a JLabel.
What's the problem with this sentence now?? There is some other way to do the same??
I've tried to convert all the array in Vectors and the problem persist, the setImage doesn't work!!
Thanks

Answer 1

I'm experiencing a similar problem with an applet programmed (not by me) between 2004 and 2006. The applet works during testing with all JRE versions before 1.6.0_11 but fails with 6.0_11 and 6.0_12, at least on my machine w/ Win XP. (But the error does not occur for the developer when using Scientific Linux.) The error thrown is:
INFO           Trying server: 9877
java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:9877 connect,resolve)
at java.security.AccessControlContext.checkPermission(Unknown Source)
at java.security.AccessController.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkPermission(Unknown Source)
at java.lang.SecurityManager.checkConnect(Unknown Source)
at sun.plugin2.applet.Applet2SecurityManager.checkConnect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at java.net.Socket.<init>(Unknown Source)
at client.ServerConnection.<init>(Unknown Source)
at client.ExperimentClient.init(Unknown Source)
at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Exception: java.security.AccessControlException: access denied (java.net.SocketPermission 127.0.0.1:9877 connect,resolve
Attempting to use a different port--6789 instead of 9877--results in the same error.
Thanks in advance to anyone who can help! -svs